The royal party boy is back! Fresh off his four-month tour of duty in Afghanistan, Prince Harry enjoyed a night out with a relative and reality stars in London Friday, Feb. 15, Us Weekly can exclusively report.

Joined by his cousin, Princess Beatrice, and Made in Chelsea reality stars Hugo Taylor and Spencer Matthews, the 28-year-old was spotted dancing at Bodos Schloss, a new ski chalet-style restaurant, bar and dance club owned by his close friend, Thomas Van Straubenzee. Harry reportedly bought a round of shots for the bar.

"Harry was having a great time drinking with his friends," a club source tells Us. "He had a good ol' flirt with some cute girls, including Ashley Roberts from Pussycat Dolls, but it was just banter and he spent most the night with his friends, and Bea, in the VIP area."

Prince William's younger brother took a regular black cab home, shunning his usual chauffeur driven Range Rover. Ever a gentleman, Harry wrote notes for the taxi driver's daughter and her friend, which they then posted on Twitter. "Dear Mickie, your dad loves you . . . teach him to drive properly!" he told an English teen named Mickie Jayne. He also wished a her friend, Callie Connelly, a "happy b-day."

Harry -- who made headlines for his nude romp in Las Vegas just one month before his September 2012 deployment -- partied for 15 hours straight immediately after returning home from Afghanistan in late January.

The redheaded royal was spotted at a pub in Fulham, West London, on the afternoon of Jan. 26, where he stayed until around 9 p.m. After a brief pit-stop at a local Sainsbury supermarket, the prince continued his night at a friend's house party and didn't exit until the early hours of the following morning.

Unlike his brother and his pregnant sister-in-law, Kate Middleton, Harry is in no rush to settle down. "If you find the right person and everything feels right, then it takes time -- especially for myself and my brother," he told the British press last month.